Question

What's the square root of 100000?

Answer 1

`sqrt10 = 3.16227766`

`sqrt ("10 00 00") = 316.227766 ~~316.23`

Explanation:

Obviously one could plug this into a calculator and get the answer. But what answer can we expect?

Underneath the square root sign - pair the digits from the right.

`sqrt ("10 00 00")`

Each pair of 0's represents a place in the answer.

The answer will have 3 digits before the comma.
Find them by finding `sqrt10` on a calculator.

`sqrt10 = 3.16227766`

`sqrt ("10 00 00") = 316.227766 ~~316.23`

compare the following answers:

`sqrt10 = 3.1623" "sqrt100 = 10`

`sqrt1000 = 31.623" "sqrt 10000 = 100`

`sqrt100000 = 316.23" "sqrt1000000 = 1000`

`sqrt10000000 = 3162.3" " sqrt100000000= 10000`

(odd number of 0's)`" "`(even number of 0s)